Home / 81,559.01-112,507.92-47,555.09

Finding the Fourth Proportional to 81,559.01, 112,507.92 and 47,555.09

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Solution

The fourth proportional to 81,559.01, 112,507.92 and 47,555.09 is: 65,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,559.01 : 112,507.92 = 47,555.09 : x
  2. Step 2: Convert to fraction form
    81,559.01/112,507.92 = 47,555.09/x
  3. Step 3: Cross multiply
    81,559.01x = 112,507.92 × 47,555.09
  4. Step 4: Simplify right side
    81,559.01x = 5,350,323,698.77
  5. Step 5: Solve for x
    x = 5,350,323,698.77/81,559.01
  6. Step 6: Final answer
    x = 65,600.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.